Professor Nyanya (Blue Archive), vibrant full color illustration, long flowing purple hair messy, horn accessory tilted, tsundere expression with deep red flushed cheeks, looking away from viewer with embarrassed pout, eyes slightly teary, arms crossed under massive breasts pushing them up, small floating heart ❤ beside face revealing true feelings, detailed school uniform on upper body only, blouse tight across huge chest with buttons undone showing cleavage, lower body completely exposed, cross-section anatomical view showing internal structure, detailed vaginal canal and uterus visible in cutaway view, legs spread slightly open, wetness visible internally, "it's not like I did this for you" attitude, denial expression contrasting with exposed internal view, delicate cel-shaded coloring, anime style, clean anatomical lines, explicit internal detail, professional rendering, soft pink gradient background, 8k, masterpiece.